Crop & Pest Report


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Weather Forecast (07/05/18)

The July 5 through July 11, 2018 Weather Summary and Outlook

Because of the Independence Day holiday, the graphic below dictating the average temperature anomalies only goes from Thursday, June 28 through Monday, July 2. During that 5 day period temperatures were near to a bit below average in western North Dakota and a bit above average in eastern North Dakota into northwestern Minnesota. The post Independence Day temperatures are likely to be above average through the middle of next week.


Rain was plentiful across much of the North Dakota Agricultural Weather Network (NDAWN) during the period of June 28 through July 2 and even more so when you include the rain the fell during the morning hours on July 3, which is included in Figure 3. Plus, additional rainfall was expected late on July 3 through early July 4 which is not included in these rain totals.

ritchison.2 3

The persistent above average temperatures that have been recorded since the beginning of May will continue for another week and probably through at least the middle of July. With the warmth over these next several days will come a break from the frequent rains as of late. Outside of what appears to be isolated events, the main shot of thunderstorms during this period will come early next week. Projected growing degree days (GDDs) Base 50°, 44° and 32° for the period of July 5 through July 11 is presented in Figure 4.


Using May 5 as a planting date, the accumulated wheat growing degree days (Based 32°) through July 2, 2018 is presented in Figure 5. You can find your exact GDDs for your planting date(s) at:


Using May 10 as a planting date, the corn accumulated growing degree days (Base 50°) through July 2, 2018 is presented in Figure 6. You can find your exact GDDs for your planting date(s) at:


Daryl Ritchison


Interim Director of the North Dakota Agricultural Weather Network



This site is supported in part by the Crop Protection and Pest Management Program [grant no. 2017-70006-27144/accession 1013592] from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed are those of the website author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

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